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Does the use of different root canal sealers and adhesive resin cements impact the bond strength of glass fiber posts?
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Ália Regina Neves de Paula Porto, Rudá França Moreira, Felipe Gonçalves Belladonna, Victor Talarico Leal Vieira, Emmanuel João Nogueira Leal da Silva
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Restor Dent Endod 2025;50(3):e29. Published online August 29, 2025
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DOI: https://doi.org/10.5395/rde.2025.50.e29
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 Abstract
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- Objectives
This study aimed to assess the influence of two endodontic sealers on the bond strength of glass fiber posts using conventional and self-adhesive resin cement through a push-out test. Methods: Forty central human incisors were randomly divided into four groups (n = 10) based on sealer (epoxy resin- based or calcium silicate-based) and cement (conventional and self-adhesive resin) types: AH Plus (Dentsply De- Trey)/RelyX ARC (3M ESPE), AH Plus/RelyX U200 (3M ESPE), Bio-C Sealer (Angelus)/RelyX ARC, and Bio-C Sealer/RelyX U200. After canal filling and post cementation, roots were sectioned to obtain one specimen per root third. A pushout test and failure pattern assessment were conducted, with bond strength analyzed using the one-way analysis of variance and Tukey test. Results: AH Plus/RelyX ARC showed the highest bond strength values, with a significant difference in the middle third. The most common failure was mixed (55%), while adhesive failures made up 45%, with 23.5% at the cement/post interface and 21.5% at the cement/dentin interface. Conclusions: AH Plus/RelyX ARC provided the highest bond strength values for glass fiber posts to dentin.
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Citations
Citations to this article as recorded by  - Effect of Endodontic Sealers on the Bond Strength of Glass Fibre Posts: A Systematic Review
Thiago Bessa Marconato Antunes, Juliana D. Bronzato, Vanessa Gallego Arias Pecorari, Jennifer Santos Pereira, Talita Tartari, Adriana de Jesus Soares, Brenda P. F. A. Gomes, Marina Angélica Marciano
Australian Endodontic Journal.2026;[Epub] CrossRef
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